So what the hell is South of Chihuahua? Is it a sun-drenched tropical locale? A wry euphemism for things better left unsaid? Or is it just a four-legged creature with a bad attitude? ¡No, no, no, amigos! South of Chihuahua is not a what or a where, it’s a whodunnit: the hired guns are a couple of compadres from Texas and California with studio chops and DJ savvy to spare. The victim is the dancefloor and, excuse us for noticing, but you seem to be standing squarely on it.